blob: 44218a4c27a4f90fec004819dd610767ffd4e0a7 [file] [log] [blame]
// Copyright 2016 The Vanadium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
abstract class GroupKeyProvider {
/// key to group devices or specs
String groupKey();
Map<String, List<dynamic>> buildGroups(List<dynamic> elements) {
Map<String, List<dynamic>> groups = <String, List<dynamic>>{};
elements.forEach((dynamic element) {
groups.putIfAbsent(element.groupKey(), () => <dynamic>[])
return groups;